[vtkusers] Enumerating of VTK class output

[Sylvain Jaume]

Hi Alex,

Try this:

int i, npts, *pts;

data->GetPolys()->InitTraversal();

while ( data->GetPolys()->GetNextCell(npts,pts) )
  {
  cout << "this cell has points";
  for (i=0; i<npts; i++)
    {
    cout << " " << pts[i];
    }
  cout << "\n";
  }

Best,
Sylvain

Alex Farber wrote:

> I want to enumerate VTK class output for some purposes (for example, 
> to render this output using my own OpenGL code), instead of using VTK 
> rendering classes. For example:
>  
>     vtkConeSource *cone = vtkConeSource::New();
>     cone->SetHeight( 3.0 );
>     cone->SetRadius( 1.0 );
>     cone->SetResolution( 10 );
>  
>     vtkPolyData* data = cone->GetOutput();
>  
> How can I enumerate through data cells and extract information from them?
>  
> Thanks.
>
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